Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8066074 | Systems and methods for mitigating annular pressure buildup in an oil or gas well | Krystian K. Maskos | 2011-11-29 |
| 5368110 | Downhole rotary bearing sub | — | 1994-11-29 |